鑒于此代碼：type Philosopher intconst (    Epictetus Philosopher = iota    Seneca)func Quote(who Philosopher) string {    fmt.Println("t: ", reflect.TypeOf(who))    switch who {    case Epictetus:        return "First say to yourself what you would be;                 and do what you have to do"    case Seneca:        return "If a man knows not to which port he sails,                 No wind is favorable"    }    return "nothing"}調(diào)用Quote(5)將打印Foo.Philosopher為 5 的類(lèi)型。為什么類(lèi)型檢查器沒(méi)有抱怨，因?yàn)檫@是類(lèi)型安全枚舉應(yīng)該做的事情，即限制值的范圍？